Hoosier Energy Reservoir Dam Reservoir Report
Last Updated: December 20, 2025
Hoosier Energy Reservoir Dam, located in Sullivan, Indiana, is a vital water supply structure that was completed in 1980.
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Summary
This earth dam, designed by UNITED ENGINEERS AND CONSTRUCTORS, stands at a height of 58 feet and has a hydraulic height of 53 feet, with a structural height of 66 feet. The dam's primary purpose is for water supply, with additional purposes including recreation. It has a normal storage capacity of 13,800 acre-feet and a maximum storage capacity of 55,070 acre-feet, serving a drainage area of 28.4 square miles.
The dam, situated on Turtle Creek, has a surface area of 1,550 acres and a spillway width of 190 feet. It is classified as having a high hazard potential, with a satisfactory condition assessment as of October 2005. The dam is regulated by the Indiana Department of Natural Resources and undergoes inspections every two years, with the last inspection conducted in September 2020. Despite the moderate risk assessment rating, the dam's risk management measures and emergency preparedness status are not specified in the data.
Overall, Hoosier Energy Reservoir Dam plays a crucial role in providing water supply to the region, while also offering recreational opportunities. With its strategic location and design features, the dam ensures the efficient management of water resources in the area. Continuing efforts in monitoring, maintenance, and risk mitigation are essential to uphold the dam's functionality and safety for the community and environment it serves.
Year Completed |
1980 |
Dam Length |
1100 |
Dam Height |
58 |
River Or Stream |
TURTLE CREEK |
Primary Dam Type |
Earth |
Surface Area |
1550 |
Hydraulic Height |
53 |
Drainage Area |
28.4 |
Nid Storage |
55070 |
Structural Height |
66 |
Outlet Gates |
Valve |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
66 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wabash River At Riverton Ind
|
1870cfs |
Busseron Creek Near Carlisle
|
452cfs |
North Fork Embarras River Near Oblong
|
5cfs |
Embarras River At Lawrenceville
|
120cfs |
Embarras River At Ste. Marie
|
34cfs |
White River At Newberry
|
2530cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Hoosier Energy Reservoir Dam
Poplar Street 8570, Merom